using System;

using System.Linq;

using System.Collections.Generic;

public class Program

{

    public static void Main()

    {

        var input = Console.ReadLine().Split(' ');

        List<int> resultList = new List<int>();

        int sumResult = 0;

        for(int i = 0; i < input.Length; i++)

        {

            char[] currentNum = new char[input[i].Length];

            currentNum = input[i].ToCharArray();

            Array.Reverse(currentNum);

            string result = new string(currentNum);

            resultList.Add(int.Parse(result));

        }

        sumResult = resultList.Sum();

        Console.WriteLine(sumResult);

    }

}